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NPETERS, PHOTO-LITHOGRAFHER. WASHINGTON. D C.

'UNITED STATES PATENT A PETER H. NILEsg-,or BosrroN, MAssAcHusErfrs,AssieNon r.ro P. LL'NILEs AND; JoNA. A. @arcuri-RDS.v 1

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Specification of Letters Patent No. 12,150, dated January 2, 1855.

. To all whom t may concern:

Be it known that I, PETER H. Nimes, of Boston, in the county of Suffolkand State of Massachusetts, have invented a new' and useful Improvementin Curtain or Vindow Shade Fixtures; and I do hereby declare that thesame is fully described and represented in the following specication andthe accompanying drawings, let-ters, figures, and references thereof.

Of the said drawings, Figure 1 denotes a front view of a curtain rollerand its brackets constructed with my improvement; Fig. 2, is alongitudinal section of the same; Fig. 3, is an end view of one of thebrackets.

The roller which is shown at A, is provided with but one head, B., thatend of the roller opposite to that fixed on the said head being intendedto be inserted, supported and made to revolve in the round socket a, ofthe bracket C.

The pulley head B, consists of a socket b (for the reception of one endof the roller) a pulley barrel c, and a flange or disk d. This barrel,c, which is cylindrical is made to enter, rotate and slide in a roundchamber, e, formed in the other bracket, D. The whole pulley head issupported and made to revolve on a stationary pin E, projected from thebracket. Enveloping this pin is a helical spring, F, which is arrangedin the chamber, e, and rests at one end against the end of the saidchamber, while atthe opposite extremity it is made to enter a smallerchamber, g, bored in the pulley barrel asV seen in Fig. 2, the'object ofthis last chamber being to enable a larger spring to be employed thancould be used were the barrel made solid. That end of the curtain rollerwhich is inserted within the socket', b, is bored axially as seen at h,and far enough to allow the barrel, c, to be moved back into thechamber, e, to the extent suflicient for releasing the curtain rollerfrom the bracket, C. When the flanch or disk, a3, of the pulley isarranged at the proper distance from the bracket, D, the end of the pin,E, is to be upset, or such pin may be provided with a head z', such aswill preserve the pulley on the pin against the pressure of the spring.

My object in the above described construction and arrangement of theoperative parts applied to the roller and t-he bracket, D, has been toso combine them that they may be entirely separate from the stick orroller, and yet hold together, whereby they may be so independent of theroller as to constitute a marketable fixture which could be sold byhardware dealers and readily applied to any stick or rollers-curtainfixtures as generally found in the market having the roller connectedand sold with them.

In various curtain fixtures, the spring is.. either placed in the socketof that bracket which is opposite to the one by which the pulley issupported or it is disposed within the body of the curtain roller andmade to act against the journals of such roller. In my improved fixturethe spring is arranged within the other or pulley bracket and on astationary pin and is not in any respect in contact with or withint-he'roller. This enables me to not only attain the advantage abovestated, but another viz., that of the direct pressure of the spring inkeeping the pulley in place on the end of the roller and preventingitfrom working or slipping of? as it is liable to when the spring is notin contact with the head. The spring is entirely encased so as not to beliable to injury or loss. Other advantages will be obvious toupholsterers or those skilled in making and applying curtain fixtures.

Although the spring when applied to the opposite end of the curtainroller operates in some cases to keep the roller in the pulley socket,yet it does not bear directly against the pulley. "When the spring isplaced at the pulley end of the roller and operates against a slidingjournal, it has no tendency to maintain the pulley head or socket on theroller and such is liable to work loose and slip off' the roller- A Itis therefore to a pulley constructed with its body'c, ymade to slideinto a socket, e, of the bracket, that my improvement is speciallyapplicable.

I am aware that .it is not new to support the pulley on a pin fixed inand projecting from a bracket; nor to make the pulley with but oneflange or head, CZ, and so as to have its barrel, c, work in a chamber,e. I therefore do not claim such, but

What I do claim is- 1. Arranging the spring in that chamber of thebracket, in which the body of the by an advantage as above stated may be1o pulley slides. obtained.

' 2. I do not claim making the pulley body In testimony whereof, Ihavehereunto set with a chamber for the reception of a spring my' signaturethis first day of November 5 or for any other purpose, but A. D. 9.854.

What I do claim is so arranging the seci :PETER H. NILES. ondary orlesser chamber g, with respect to Witnesses: the chamber e, that thespring F, may eX- p R. H. EDDY, tend into both chambers as specied,Wheref j F." I. HALE, Jr.

